• 专利标题:   Preparation of bonded silver wire with graphene film involves adding trace metal elements to silver, vacuum melting, casting silver alloy bar, drawing wire, annealing, configuring using graphene oxide and ascorbic acid solutions, and drying.
  • 专利号:   CN107523773-A
  • 发明人:   JIN P, LU Z, TIAN S
  • 专利权人:   SHENZHEN YUANSIDACHENG TECHNOLOGY CO LTD
  • 国际专利分类:   B21C037/04, C22F001/14, C23C018/16, H01L021/60
  • 专利详细信息:   CN107523773-A 29 Dec 2017 C22F-001/14 201820 Pages: 10 Chinese
  • 申请详细信息:   CN107523773-A CN10511811 27 Jun 2017
  • 优先权号:   CN10511811

▎ 摘  要

NOVELTY - Preparation of bonded silver wire with graphene film involves adding trace metal elements to silver, vacuum melting, and casting silver alloy bar into 6-10 mm; drawing 0.5-1.0 mm wire from silver alloy bar material; intermediate annealing at 400-800 degrees C for 2-6 hours under nitrogenous protective atmosphere; drawing silver alloy wire continuously to obtain superfine silver alloy wire with 0.01-0.03 mm diameter; continuing annealing at 400-600 degrees C for 0.2-0.6 second to obtain microelectronic package bonded silver wire; and configuring using 1.0-10.0 mg/mL graphene oxide solution, and drying. USE - Method for preparing bonded silver wire with graphene film (claimed). ADVANTAGE - The method improves bonding silver oxidation resistance, and has low cost. DETAILED DESCRIPTION - Preparation of bonded silver wire with graphene film comprises adding trace metal elements to silver, vacuum melting, and casting silver alloy bar into 6-10 mm; drawing 0.5-1.0 mm wire from silver alloy bar material; intermediate annealing at 400-800 degrees C for 2-6 hours under nitrogenous protective atmosphere; drawing silver alloy wire continuously to obtain superfine silver alloy wire with 0.01-0.03 mm diameter; continuing annealing at 400-600 degrees C for 0.2-0.6 second under nitrogenous protective atmosphere to obtain microelectronic package bonded silver wire; configuring using 1.0-10.0 mg/mL graphene oxide solution, passing bonded silver wire through aqueous graphene oxide in long tube under ultrasonic vibration, and drying; and continuing passing bonded silver wire through ascorbic acid solution in long tube under ultrasonic vibration, and drying.